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Specifying the number of borehole heat exchangers based on thermal response test and geoenergetic analysis.

Tomasz Śliwa, Aneta Sapińska-Śliwa, Andrzej Gonet, Zbigniew Jezuit, Anna Bieda, Tomasz Kowalski, Jarosław Ozimek, Albert Złotkowski

Vol. 34, no. 1 (2017), s. 273-289, [1]

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For the correct design, the number and the location of borehole heat exchangers, it is necessary to know thermal properties of rocks and the exchanger. This applies particularly to larger installations, more than 100 kW. One of the methods of determining these values is Thermal Response Test. This method is based on measurements in the first drilled borehole heat exchanger. Based on results of the TRT geothermal analysis is made. The analysis defines: the number of wells, the arrangement of wells, and the parameters of temperature of heat carrier after long-term use. This analysis based on calculations using specialist software. This paper presents the determination of the number of borehole heat exchangers and working conditions (temperature of the heat carrier) of an underground heat reservoir accessed using borehole heat exchangers for the building of the Primary School in Myszków.

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